1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
4 */
5
6 /*
7 * objtool orc:
8 *
9 * This command analyzes a .o file and adds .orc_unwind and .orc_unwind_ip
10 * sections to it, which is used by the in-kernel ORC unwinder.
11 *
12 * This command is a superset of "objtool check".
13 */
14
15 #include <string.h>
16 #include "builtin.h"
17 #include "objtool.h"
18
19 static const char *orc_usage[] = {
20 "objtool orc generate [<options>] file.o",
21 "objtool orc dump file.o",
22 NULL,
23 };
24
25 int cmd_orc(int argc, const char **argv)
26 {
27 const char *objname;
28
29 argc--; argv++;
30 if (argc <= 0)
31 usage_with_options(orc_usage, check_options);
32
33 if (!strncmp(argv[0], "gen", 3)) {
34 argc = parse_options(argc, argv, check_options, orc_usage, 0);
35 if (argc != 1)
36 usage_with_options(orc_usage, check_options);
37
38 objname = argv[0];
39
40 return check(objname, true);
41 }
42
43 if (!strcmp(argv[0], "dump")) {
44 if (argc != 2)
45 usage_with_options(orc_usage, check_options);
46
47 objname = argv[1];
48
49 return orc_dump(objname);
50 }
51
52 usage_with_options(orc_usage, check_options);
53
54 return 0;
55 }
56
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